Message : CPD4336
Join field &3 found in file &7 not valid.
Message Long Text :
Cause . . . . . : Join field &3 in join item number &2 was found in file &7 in library &8 format &4 join reference &5. The join field that was identified is a join from-field and the join reference of the identified field is equal to the join reference for the corresponding join to-field. The join reference of the from-field must precede the join reference of the to-field. If join field &3 is a derived field, or is mapped from other fields in the query record format, all of the contributing fields must be found in a join reference as described above. If the file name is *FUNCTION, the file was user-defined table function &9 in library &8.